Pallas's squirrel

Pallas's squirrel (scientific name Callosciurus erythraeus) belongs to the order Rodentia and the family Sciuridae. As an invasive species originating from Southeast Asia, it has become a significant threat to agricultural sectors and local forest ecosystems in several regions around the world.

This squirrel feeds on a wide range of plants, causing substantial damage to various forestry species, nut-bearing trees, and fruit orchards. They are known for consuming buds, shoots, and fruit, which significantly impacts the yield and overall health of the affected plant populations.

The biology of this species is characterized by high reproductive rates and great behavioral flexibility. Under favorable conditions, the population density can increase rapidly, leading to widespread damage across both natural woodlands and cultivated garden environments where they find abundant resources.

The most severe damage is caused by bark stripping, where squirrels peel off layers of bark from branches and trunks. This behavior exposes the underlying wood to pests and diseases, disrupting the tree's vascular system and often resulting in partial or total mortality of the affected tree.

• Installing metal baffle guards on tree trunks.
• Using protective netting for fruit and nut trees.
• Implementing ultrasonic deterrent systems.
• Trimming branches to isolate tree crowns from structures.

Management of Pallas's squirrel requires proactive mechanical intervention. Protecting high-value trees with physical barriers is the most effective method, as it prevents the animals from reaching the upper canopy. Ongoing monitoring is essential to manage population levels and minimize horticultural damage.